Modular barbecue

ABSTRACT

A modular barbecue including a central portion, four lower support legs, and an upper portion. The central portion, made of refractory concrete, is a parallelepipedic body with rectangular base and two chambers, one frontal roasting chamber where foods, placed on a vertically movable steel grill, are roasted, and a rear combustion chamber in which solid fuel or charcoal is transformed into embers that, by actuating on a crank, fall onto the rear chamber bottom. The combustion chamber has its own access gate to introduce the solid fuel or charcoal. The upper portion has two truncated pyramidal pieces with respective conducts for smoke evacuation, a frontal conduct for smoke from the roasting chamber and a rear conduct for smoke from the combustion chamber. Both conducts have respective inner protecting pieces. This upper portion has, on top, a double conduct chimney.

FIELD OF THE INVENTION

This invention has its application in the industry dedicated tomanufacture elements for barbecues and similar.

BACKGROUND OF THE INVENTION

The applicant has knowledge of the existence at the present time of agreat number and variety of barbecues, all of them manufactured indifferent materials, mainly concrete and metallic materials, beingportable those barbecues manufactured in metallic material, presenting ahollow prismatic structure for the incorporation of fuel, as charcoal,firewood, chips, etc., that is burnt until their transformation inembers, having upper pieces for grills or griddle plates retention,cooperating in some cases with a chimney, presenting an ash drawer andlower trays for the firewood or fuel storage.

The barbecues manufactured in rocky materials, bricks or concrete areundisplaceable, having a cowl-type upper surface covering the roast andcombustion chamber, occasionally having grills movable from outside bymeans of an actuation handle fixed to a chain for movement transmission.

In all cases, during the stage of transformation of fuel into embers andin the light roast stage, it has been verified that barbecues emit tooutside environment a great quantity of smoke through the wide frontopening, which during the transformation stage is accompanied withsparks, ashes and some small quantity of gas, thus making non-advisableto place the barbecue in areas where environment damages can take placebecause of said anomalies.

It is not known by the applicant the existence, at the present time, ofa barbecue provided with an independent combustion chamber, dedicated tothe transformation of the material used as fuel into embers, saidchamber having a completely external and differentiated access and beingprovided the roast chamber as well as the combustion chamber withindependent smoke canalizations or outlets, through which a chimney ofdouble body with internal protection is accessed.

Neither it is known by the applicant the existence of a combustionchamber provided with a movable lower grate to allow the evacuation ofburning embers.

SUMMARY OF THE INVENTION

The present invention refers to al unproved modular barbecue, configuredlike a barbecue whose pieces are made of refractory concrete, it beingpossible, should it be required, to substitute each one of theconstituent pieces, presenting in the rear central area of the grillbody a chamber for transformation of the fuel used into embers thatlater on will be used to carry out the roast or light roast operation offoods that will be placed on a grill able to be moved vertically upwardsor downwards, said grill being optionally replaceable by a griddle platealso movable vertically upwards or downwards.

The combustion chamber, where the fuel is placed, presents a completelyindependent access gate, having a grilled piece for holding the fuel.

It is also an object of the invention to implement two independentoutlets, one for exiting of the smoke from the combustion chamber, and asecond one for withdrawal of the smoke from the cooking chamber, alsopresenting independent chimneys, the interior of each one provided withcomplementary pieces to protect the chimney external pieces, thusavoiding the breaking of said chimneys.

The barbecue, due to the incorporation of inside outlets for smoke thatis extracted by the venturi effect, can be installed outside as well asinside of a house.

The improved modular barbecue of the invention has an evident novelty inits specific field of application, because it presents advantages notincorporated in the prior art.

Particularly, the improved modular barbecue of the invention comprises aplurality of manufactured pieces of concrete, mounted with metal piecesas the grills, support and rotation shafts as well as an optionalgriddle plate, having four support legs with upper elements dedicated toreceive and support a horizontal piece constituting the base of theroast chamber in whose smaller sides two pieces are located whoseexternal area imitates bricks, presenting internally guides suitable forthe support elements sliding, for fixation and movement of a grill,optionally replaceable by a griddle plate, having a chamber in theinternal front area, whose lower area presents a grill slightlyseparated from the bottom end having said piece, that altogether withthe rear one constitute the combustion chamber, an opening in its lowerpart, being accessed the chamber through a door provided with a suitablehinge and a handle located at the right side.

The barbecue is complemented with a handle for moving the fuelsupporting grill that, by means of some slight movements, makes theembers to fall down to the lower area, being said embers thentransferred by means of a rake to the base upper area where it is placedjust under the product to be roasted located on the grill or griddleplate.

Smoke and gases from the combustion ascend by the inside of thecombustion chamber where the combustion is performed and are driven tothe outside through a chimney located in the rear upper part, saidchimney being internally coated by means of a protecting piece thatavoids breakage of the external element due to the hot smoke when thechimney is very cold or wet.

Smokes produced by the roasting operation reach the outside through thefront upper chimney, and the ends of both upper canalizations convergeinto a rectangular piece, internally splitted by a cross partition,presenting an upper cowl that is separated from the end of thecomplementary upper chimney by support pieces.

The grill constituting the food support area, optionally replaceable bya metallic griddle plate, raises and falls by means of a mechanisminstalled on the internal faces of the side pieces, presenting a handleor crank in the external area for driving said mechanism, said handle orcrank being provided with a brake mechanism.

The combustion chamber has an access gate provided with a closingelement.

DESCRIPTION OF DRAWINGS

To complement the present description and in order to help for betterunderstanding of the characteristics of the invention, four drawings areattached to the present descriptive document, as integral part thereof,in which, with illustrative and not limitative character, the followinghas been represented:

FIG. 1 shows an exploded view of the different elements or piecesconstituting the invention, relating to an improved modular barbecue,except for the constituting pieces of the chimneys or pieces for smokeevacuation.

FIG. 2 shows a perspective view of an assembled barbecue, except for thechimneys or pieces for smoke evacuation that appear in exploded view inthe upper part.

FIG. 3 is a perspective view of a completely assembled barbecue,presenting additional details corresponding to the grills and griddleplates movements, and the grills for supporting the fuel.

FIG. 4 shows a side elevational view of a vertical cross section of thebarbecue.

PREFERRED EMBODIMENT OF THE INVENTION

In view of above figures, it can be observed how the improved modularbarbecue (1) is made of a plurality of concrete pieces, except somemetallic pieces constituting the grills and griddle plates.

The improved modular barbecue (1) presents a central piece (2) ofrectangular plant constituting the central area of the barbecue, onwhich, and particularly on an area (5) provided with transversalgrooves, the fuel converted into embers will be deposited, being thepiece (2) supported in the horizontal sense by means of four legs (3)with their upper supports (4), being assembled on the central piece (2)two pieces (6) and (6′) on its lateral sides, being said pieces (6) and(6′) provided at their internal faces with grooves (7) for fixing araising and falling mechanism of a grill (11), on which the elementswill be placed, presenting in their lateral fixation means (30); thegrill (11) can be optionally substituted by a steel griddle plate.

In the rear part of the piece (2) a back piece (10) is verticallyassembled and parallel to said piece but in the internal area there is apiece (9) similar to the piece (10), but provided in the inferior partwith an opening (9′), through which the embers will come out towards thesurface (5) of the piece (2), said embers having previously beenintroduced through a door (8) existing in the lateral side (6) thatgives access to a combustion chamber formed by pieces (9) and (10),inside which there is a grill (13) provided with a crank (14); byslightly actuating the on said crank (14), the embers are moveddownwards onto the rear surface of the piece (2), reaching said piecethrough an opening (9′) existing at the lower area of the front piece(9).

The gate (8) has a handle and a lock (32), and the raising and loweringmechanism of the grill has a crank (31) that, cooperating with atransversal support piece (12), allows the grill raising or lowering;the grill (11) can be replaced by a steel griddle plate (nor representedneither referenced).

A piece (15), parallel to piece (2) is placed onto the pieces (6), (6′),(9) and (10), being said piece (15) provided with two rectangularopenings (17, 16) with dimensions different in width but not inlongitude, through which the smoke from the combustion chamber (40)comes out in upward sense, also the smoke produced by the treatment thefoods placed on the grill (11) ascends vertically through the opening(16) to reach the outside through the trunco-pyramidal pieces (18) and(19) respectively located over the openings (16) and (17); it should benoted that pieces (18) and (19) are provided with a respective internalcoating piece (20) and (21) that protects the structure of pieces (18)and (19) through their upper openings with a piece (22) provided in itscentral area with a small transversal partition (23) that acts as driverof smoke toward the outside, having a closing piece (25) supported onthe piece (22) by supports (24).

In summary, the invention, formed completely by modular pieces, presentsas a fundamental feature the existence in the rear part of atransformation or combustion chamber formed by two partitions (9) and(10) transversally located on the piece (2), that in cooperation withthe lateral partitions (6) and (6′) configure the transformationchamber, to which access is given through a gate (8) existent in thepiece (6), passing the material used as fuel, once converted in embers,to the surface of the piece (2) through the opening (9′) when a slightlyhigher support grill (13), existing inside the combustion chamber (40),is moved by means of the actuation on a handle (14).

The invention also presents as a fundamental feature an internal coatingof the pieces (18) and (19) that act as chimneys for the smokeevacuation from the roast and light roast chamber and from thecombustion or transformation chamber, leaving said smoke through thepieces (20) and (21) until converging in a canalization piece (22)provided with a central partition (23) and having in its upper part aprotecting piece or cowl (25) supported on conventional supports (24).

It is not considered necessary to make this description more extensiveso that any expert in the art may understand the scope of the inventionand the advantages that are derived thereof.

Materials, forms, sizes and arrangement of the elements will besusceptible of variation, provided that it does not mean any alterationof the essence of the invention.

The terms used in this disclosing document will always be taken in awide and not limitative character.

What is claimed is:
 1. A modular barbecue comprising: at least foursupporting elements; a base element supported on the four supportingelements; a left wall placed vertically on the base element at a leftside of the base element; a right wall placed vertically on the baseelement at a right side of the base element; a back wall placedvertically on the base element at a back side of the base element; anintermediate wall placed vertically on the base element and generallyparallel to the back wall, the intermediate wall having an opening atits bottom; an upper element placed on top of all of the left, right,back and intermediate walls and placed generally parallel to the baseelement, the upper element having two openings; two hollow truncatedelements placed on top of the upper element; and a hollow element havinga transversal partition, the hollow element being placed on top of thetwo hollow truncated elements; wherein the base element, left, right,back, and intermediate walls, and upper element define two chambers, afront roasting chamber and a rear combustion chamber, the opening of theintermediate wall allowing access from the front roasting chamber to therear combustion chamber in such a way that embers inside the rearcombustion chamber may be transferred from the rear combustion chamberto the front roasting chamber through the opening of the intermediatewall, and the openings of the upper element allowing smoke produced inthe front roasting chamber and rear combustion chamber to exit.
 2. Amodular barbecue according to claim 1, wherein a first of the two hollowtruncated elements is placed on a front portion of the upper element,covering a first of the openings in the upper element, and a second ofthe two hollow truncated elements is placed on a red portion of theupper element, covering a second of the openings in the upper element,and wherein the first and second hollow truncated elements are providedwith internal coating elements to avoid breakage.
 3. A modular barbecueaccording to claim 1, wherein the two hollow truncated elements convergeat their upper portions in the hollow element having a transversalpartition, thus defining two separated conducts for independentlyconveying smoke produced in the front roasting chamber and in the rearcombustion chamber.